90223 has 4 divisors (see below), whose sum is σ = 103120. Its totient is φ = 77328.

The previous prime is 90217. The next prime is 90227. The reversal of 90223 is 32209.

90223 = T₈₂ + T₈₃ + ... + T₁₀₂.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32209 = 31 ⋅1039.

It is a cyclic number.

It is not a de Polignac number, because 90223 - 2⁵ = 90191 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 90197 and 90206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6438 + ... + 6451.

It is an arithmetic number, because the mean of its divisors is an integer number (25780).

2⁹⁰²²³ is an apocalyptic number.

90223 is a deficient number, since it is larger than the sum of its proper divisors (12897).

90223 is a wasteful number, since it uses less digits than its factorization.

90223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12896.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 90223 is about 300.3714367246. The cubic root of 90223 is about 44.8510300212.

It can be divided in two parts, 9022 and 3, that added together give a square (9025 = 95²).

The spelling of 90223 in words is "ninety thousand, two hundred twenty-three".